Composition comprising an alkanolamine, an amino acid and an associative polymer

Abstract

The present invention provides a composition for treating keratin fibers, and especially human keratin fibers such as the hair, which comprises, in a cosmetically acceptable medium, one or more alkanolamines, one or more amino acids and one or more associative polymers. The present invention likewise provides methods of bleaching and/or coloring keratin fibers, and also multiple-compartment devices or kits for the implementation of these methods.

1. A cosmetic composition for treating keratin fibers, comprising, in a cosmetically acceptable medium:
 at least one alkanolamine; 
 at least one amino acid; and 
 at least one associative polymer, 
 
       wherein the alkanolamine/acid molar ratio is less than or equal to 10. 
     
     
       2. A cosmetic composition according to  claim 1 , wherein the at least one alkanolamine is chosen from monoethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, and tris-hydroxymethylamino-methane. 
     
     
       3. A cosmetic composition according to  claim 2 , wherein the alkanolamine is monoethanolamine. 
     
     
       4. A cosmetic composition according to  claim 1 , wherein the at least one amino acid is chosen from the compounds of formula: 
       
         
           
           
               
               
           
         
       
       in which:
 p is 1 or 2, 
 R represents a hydrogen atom, an aliphatic group containing or not containing a heterocyclic moiety, or an aromatic group; and 
 
       when p=1, R may also form, with the nitrogen atom of —N(H) p , a heterocycle. 
     
     
       5. A cosmetic composition according to  claim 4 , wherein the at least one amino acid is selected from arginine, glycine, histidine, and lysine. 
     
     
       6. A cosmetic composition according to  claim 4 , wherein the at least one associative polymer is chosen from anionic, cationic, amphoteric and non-ionic associative polymers. 
     
     
       7. A cosmetic composition according to  claim 6 , wherein the at least one associative polymer is chosen from cationic and non-ionic associative polymers. 
     
     
       8. A cosmetic composition according to  claim 1 , wherein the at least one associative polymer is chosen from polyurethanes and cellulose derivatives. 
     
     
       9. A cosmetic composition according to  claim 1 , further comprising at least one entity chosen from oxidation bases, couplers, and direct dyes. 
     
     
       10. A cosmetic composition according to  claim 1 , comprising at least one oxidizing agent. 
     
     
       11. A method of coloring and/or lightening keratin fibers comprising:
 applying to said fibers a composition comprising, in a cosmetically acceptable medium:
 at least one alkanolamine; 
 at least one amino acid; 
 at least one associative polymer; 
 at least one entity chosen from oxidation bases, couplers, and direct dyes; and 
 optionally at least one oxidizing agent, 
 
 wherein the alkanolamine/amino acid molar ratio is less than or equal to 10; and 
 leaving the composition on the fibers for a period of time sufficient to develop the coloration and/or lightening. 
 
     
     
       12. A method of coloring and/or lightening keratin fibers according to  claim 11 , wherein the composition further comprises at least one oxidizing agent. 
     
     
       13. A method of bleaching keratin fibers, comprising
 applying to said fibers a composition comprising, in a cosmetically acceptable medium:
 at least one alkanolamine; 
 at least one amino acid; 
 at least one associative polymer; and 
 at least one oxidizing agent, 
 wherein the alkanolamine/amino acid molar ratio is less than or equal to 10; and 
 
 leaving the composition on the fibers for a time sufficient to give the desired bleaching. 
 
     
     
       14. A multiple-compartment device for the dyeing of keratin fibers, comprising a first compartment containing a cosmetic composition comprising, in a cosmetically acceptable medium:
 at least one alkanolamine; 
 at least one amino acid; 
 at least one associative polymer; and 
 at least one entity chosen from oxidation bases, couplers, and direct dyes, 
 
       wherein the alkanolamine/amino acid molar ratio is greater less than or equal to 10; and 
       a second compartment containing an oxidizing composition comprising at least one oxidizing agent. 
     
     
       15. A multiple-compartment device for the bleaching of keratin fibers, comprising in a first compartment containing a composition comprising, in a cosmetically acceptable medium:
 at least one alkanolamine; 
 at least one amino acid; 
 at least one associative polymer; and 
 at least one oxidizing agent, 
 
       wherein the alkanolamine/amino acid molar ratio is greater less than or equal to 10; and 
       a second compartment containing an oxidizing composition comprising at least one oxidizing agent.